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Mackie ProFX8 User Manual

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17
Owner’s Manual
Owner’
s Manual
Channel Controls
The vertical channel strips look very similar, with only 
a few differences between them. Each channel works 
independently, and just controls the signals plugged into 
the inputs directly above it. There are three different 
fl avors of channel strip: Mono, Hybrid, and Stereo.
Mono Channels  (1–4 on ProFX12) 
 
 
        
(1, 2 on ProFX8)
• 
The mono channel controls affect both the 
mono mic input and the mono line-level input.
• 
The gain knob adjusts both mic and line inputs.
• 
Each mono channel has an insert jack and low 
cut switch.
• 
Channel 1 has a hi-z switch so you can connect 
a guitar directly.
• 
The 3-band EQ has shelving high, shelving low, 
and peaking mid EQ.
Hybrid Channels (5/6, 7/8 on ProFX12)  
 
        
(3/4, 5/6 on ProFX8)
• 
Except for gain and low cut, these controls 
affect the mono mic input and the stereo line-
level input.
• 
The gain knob adjusts the mic input only. (The 
stereo line inputs are fi xed at unity gain.)
• 
The low cut switch only affects the mic input.
• 
The mono mic input is split equally to the left 
and right.
• 
The hybrid channel EQ is a 3-band design just 
like the mono channel EQ.
Stereo Channels (9/10, 11/12 on ProFX12) 
 
    
 
(7/8 
on 
ProFX8)
• 
These controls affect the stereo line-level 
inputs.
• 
The gain knob adjusts the left and right line 
inputs equally. There is no level set LED or low 
cut switch.
• 
The stereo channel EQ is a 3-band design just 
like the mono channel EQ.
“U” LIKE UNITY GAIN
Mackie mixers have a “U” symbol on almost every level 
control. This “U” stands for “unity gain,” meaning no 
change in signal level (0 dB gain). Once you have ad-
justed the input signal with the gain control, you can set 
every control at “U” and your signals will travel through 
the mixer at optimal levels. What’s more, all the labels 
on our level controls are measured in decibels (dB), so 
you’ll know what you’re doing level-wise if you choose to 
change a control’s settings.
TAPE
 IN
TAPE
OUT
L
R
L
(UNBALANCED)
R
MID
2.5kHz
MID
2.5kHz
MID
2.5kHz
MID
2.5kHz
MID
2.5kHz
80Hz
LOW
U
+15
-15
U
+15
-15
U
+15
-15
LINE IN 4 
INSERT
R
L
LOW CUT
100 Hz
U
GAIN
MI
C GAIN
U
+50
-20dB
+30dB
4
12kHz
HI
MID
2.5kHz
80Hz
LOW
U
+15
-15
U
+15
-15
U
+15
-15
12kHz
HI
MID
2.5kHz
80Hz
LOW
U
+15
-15
U
+15
-15
U
+15
-15
12kHz
HI
MID
2.5kHz
80Hz
LOW
U
+15
-15
U
+15
-15
U
+15
-15
12kHz
HI
PAN
AUX
U
+15
O
O
MON
FX
U
+15
O
O
R
L
PAN
AUX
U
+15
O
O
MON
FX
U
+15
O
O
R
L
PAN
AUX
U
+15
O
O
MON
FX
U
+15
O
O
R
L
PAN
AUX
U
+15
O
O
MON
FX
U
+15
O
O
80Hz
LOW
U
+15
-15
U
+15
-15
U
+15
-15
R
L
LOW CUT
100 Hz
12kHz
HI
PAN
AUX
U
+15
O
O
MON
FX
U
+15
O
O
80Hz
LOW
U
+15
-15
U
+15
-15
U
+15
-15
BAL /
UNBAL
(MONO)
(MONO)
(MONO)
LINE IN 7
LINE IN 8
BAL /
UNBAL
LINE IN 9 
R
L
LOW CUT
100 Hz
GAIN
7/8
5/6
12kHz
HI
PAN
AUX
U
+15
O
O
MON
FX
U
+15
O
O
80Hz
LOW
U
+15
-15
U
+15
-15
U
+15
-15
R
L
MI
C GAIN
U
+50
GAIN
MI
C GAIN
U
+50
9/10
12kHz
HI
LEVEL
SET
LEVEL
SET
LEVEL
SET
LOW CUT
100 Hz
U
GAIN
MI
C GAIN
U
+50
-20dB
+30dB
LEVEL
SET
LEVEL
SET
LEVEL
SET
LOW CUT
100 Hz
U
GAIN
MI
C GAIN
U
+50
-20dB
+30dB
LOW CUT
100 Hz
U
GAIN
MI
C GAIN
U
+50
-20dB
+30dB
PAN
AUX
U
+15
O
O
MON
FX
U
+15
O
O
GAIN
MIC 
MIC 
MIC 
MIC 
MIC 
MIC 
80Hz
LOW
U
+15
-15
U
+15
-15
U
+15
-15
U
+20
-20
GAIN
U
+20
-20
R
L
11/12
EQ
EQ
EQ
EQ
EQ
EQ
EQ
EQ
12kHz
HI
PAN
AUX
U
+15
O
O
MON
FX
U
+15
O
O
dB
30
20
10
10
O
O
40
50
5
5
U
60
dB
30
20
10
10
O
O
40
50
5
5
U
60
dB
30
20
10
10
O
O
40
50
5
5
U
60
dB
30
20
10
10
O
O
40
50
5
5
U
60
dB
30
20
10
10
O
O
40
50
5
5
U
60
dB
30
20
10
10
O
O
40
50
5
5
U
60
dB
30
20
10
10
O
O
40
50
5
5
U
60
dB
30
20
10
10
O
O
40
50
5
5
U
60
L
R
(MONO)
LINE IN 5
LINE IN 6
BAL /
UNBAL
L
R
LINE IN 10
BAL /
UNBAL
L
R
LINE IN 11
LINE IN 12
BAL /
UNBAL
L
R
4
LINE IN 3 
INSERT
3
BAL /
UNBAL
3
LINE IN 2
INSERT
2
BAL /
UNBAL
BAL /
UNBAL
2
LINE/HI-Z IN 1 
INSERT
1
5/6
7/8
9/10
11/12
LINE 
HI-Z
1
OL
OL
OL
OL
OL
OL
OL
OL
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
TAPE
 IN
L
R
(UNBALA
MID
2.5kHz
MID
2.5kHz
MID
2.5kHz
MID
2.5kHz
MID
2.5kHz
80Hz
LOW
U
+15
-15
U
+15
-15
U
+15
-15
INSERT
R
L
LOW CUT
100 Hz
U
GAIN
MI
C GAIN
U
+50
-20dB
+30dB
OL
1
EQ
12kHz
HI
PAN
AUX
U
+15
O
O
MON
FX
U
+15
O
O
80Hz
LOW
U
+15
-15
U
+15
-15
U
+15
-15
R
L
LOW CUT
100 Hz
U
GAIN
MI
C GAIN
U
+50
-20dB
+30dB
2
EQ
12kHz
HI
PAN
AUX
U
+15
O
O
MON
FX
U
+15
O
O
80Hz
LOW
U
+15
-15
U
+15
-15
U
+15
-15
LINE IN 2 
LINE/HI-Z IN 1
INSERT
BAL /
UNBAL
(MONO)
(MONO)
(MONO)
LINE IN 3
LINE IN 4
BAL /
UNBAL
LINE IN 5 
R
L
LOW CUT
100 Hz
GAIN
3/4
EQ
12kHz
HI
PAN
AUX
U
+15
O
O
MON
FX
U
+15
O
O
80Hz
LOW
U
+15
-15
U
+15
-15
U
+15
-15
R
L
LOW CUT
100Hz
GAIN
MI
C GAIN
U
+50
MI
C GAIN
U
+50
5/6
EQ
12kHz
HI
LEVEL
SET
LEVEL
SET
LEVEL
SET
LEVEL
SET
PAN
AUX
U
+15
O
O
MON
FX
U
+15
O
O
GAIN
MIC 
MIC 
MIC 
MIC 
80Hz
LOW
U
+15
-15
U
+15
-15
U
+15
-15
U
+20
-20
R
L
7/8
EQ
12kHz
HI
PAN
AUX
U
+15
O
O
MON
FX
U
+15
O
O
dB
30
20
10
10
O
O
40
50
5
5
U
60
dB
30
20
10
10
O
O
40
50
5
5
U
60
dB
30
20
10
10
O
O
40
50
5
5
U
60
dB
30
20
10
10
O
O
40
50
5
5
U
60
dB
30
20
10
10
O
O
40
50
5
5
U
60
L
R
LINE IN 6
BAL /
UNBAL
L
R
LINE IN 7 
LINE IN 8
BAL /
UNBAL
L
R
OL
OL
OL
OL
1
2
3/4
5/6
7/8
LINE
HI-Z
LINE
HI-Z
MUTE
MUTE
MUTE
MUTE
MUTE
MONO
HYBRID
STEREO
MONO
HYBRID
STEREO
ProFX12
ProFX8